Replacing the System Battery

100

Control Panel Assembly

102

Removing the Control Panel Assembly

102

Installing the Control Panel Assembly

104

System Board

104

Removing the System Board

104

Installing the System Board

106

4 Troubleshooting Your System . . . . . . . . 109

Safety First—For You and Your System

109

Troubleshooting System Startup Failure

109

Troubleshooting External Connections

109

Troubleshooting the Video Subsystem

110

Troubleshooting a USB Device

110

Troubleshooting a Serial I/O Device

111

Troubleshooting a NIC

111

Troubleshooting a Wet System

112

Troubleshooting a Damaged System

113

Troubleshooting the System Battery

114

Troubleshooting Power Supply

115

Troubleshooting System Cooling Problems

115

Troubleshooting a Fan

116

Troubleshooting System Memory

116

Contents

9

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Dell R210 owner manual Troubleshooting Your System